137252017-09-18Pulsed Fission-Fusion Propulsion SystemPuFFCompletedAug 2013Apr 2014<p>Leveraging insights gained from the weapons physics program, a Z-Pinch device could be used to ignite a thermonuclear deuterium trigger, which could provide a radical improvement in our ability to explore destinations across the solar system and beyond.<p/><p>Fission-ignited fusion systems have been operational – in weapon form – since the 1950's. Leveraging insights gained from the weapons physics program, a Z-Pinch device could be used to ignite a thermonuclear deuterium trigger. The fusion neutrons will induce fission reaction in a surrounding uranium or thorium liner, releasing sufficient energy to further confine and heat the fusion plasma. The combined energy release from fission and fusion would then be directed using a magnetic nozzle to produce useful thrust. This type of concept could provide the efficiency of open cycle fusion propulsion devices with the relative small size and simplicity of fission systems; and would provide a radical improvement in our ability to explore destinations across the solar system and beyond.<p/><p>Pulsed Fission-Fusion (PuFF) is a two-stage compression system consisting of a z-pinch and field-reversed configuration.</p><p>N/A</p>22232522In-Space Propulsion Technologies32532.3Advanced (TRL<3) Propulsion Technologies32383Space Power and Energy Storage32553.1Power GenerationNASA Innovative Advanced ConceptsSpace Technology Mission DirectorateNASA HeadquartersHQNASA CenterWashingtonDCUniversity of Alabama at HunstvilleAcademicHuntsvilleALAlabamaTherese GriebelRobert AdamsJason T Cassibry386Pulsed Fission-Fusion (PuFF) Propulsion SystemImageConcept diagram2462https://techport.nasa.gov/file/2462132550